Energy Efficiency Indicator of Pumping Equipment Usage
Abstract
:1. Introduction
- −
- The energy efficiency of equipment usage for pumping water [4];
- −
- Requirements for energy-related products (Directive 2009/125/EC of the European Parliament and of the Council establishing a framework for the setting of ecodesign requirements for energy-related products) in terms of implementing ecodesign requirements for water pumps [5];
- −
- The (EC) 641/2009 Regulation, on implementing Directive 2005/32/EC of the European Parliament and of the Council on circulation pumps [6].
2. Materials and Methods
- (a)
- If the pump has more than one head and flow characteristic, then the calculation is performed on the maximum of them;
- (b)
- At least 10 points are used, evenly distributed to fit the curve “Q-H”;
- (c)
- The function Hfit(Q) for the corresponding pump is selected using the least squares method.
- (1)
- (2)
3. Results
3.1. General Provisions for the Study
3.2. Calculation Results of Energy Efficiency Indicators for the Use of Pumping Equipment When Applying the Efficiency Indicator at the Point of Optimal Pump Efficiency ηBEP
3.3. Calculation Results of Energy Efficiency Indicators for the Use of Pumping Equipment at the Maximum Value of the Function Phyd(QEEI)
3.4. Diagram of the Energy Efficiency Indicators’ Distribution
4. Discussion
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
Nomenclature
EEI | Energy efficiency index | |
ISO 9906:2012 | Rotodynamic pumps. Hydraulic performance acceptance tests. Grades 1, 2 and 3 | |
EN 16297-1 | Pumps. Rotodynamic pumps. Glandless circulators. General requirements and procedures for testing and calculation of energy efficiency index (EEI) | |
IEEP | Energy efficiency indicator of equipment | |
Symbols and Units | ||
η | efficiency | % |
H | Head | m |
Q | Flow rate | m3/h |
PL,avg | Average compensated network power | W |
Pref | Reference power at the pump inlet | W |
PL,i%(Qi) | Network hydraulic power | W |
Flow rate for the i-th network loading mode | m3/h | |
hnet | Function that characterizes the network head rate | m |
Phyd | Hydraulic output power | W |
ηQ* | Efficiency of pumping equipment at the flow rate of pumping equipment Q* | m3/h |
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Characteristic of the Conventional Network | Value |
---|---|
Flow rate at the nominal network loading mode QNOM, m3/h | 100 |
Maximum flow rate Qmax = 1.2 · QNOM, m3/h | 120 |
Pressure head at the nominal network loading mode HNOM, m | 30 |
The minimum head rate in the network Hmin, m | 10 |
The maximum head rate in the network Hmax, m | 45 |
Technical Characteristics | Pump Markings | |||||
---|---|---|---|---|---|---|
065–215 (210) 1 | 065–215 (190) 1 | 050–216 (210) 1 | 050–216 (190) 1 | 80–32 | 125–32 | |
Pump ID | 1 | 2 | 3 | 4 | 5 | 6 |
Size D2, mm | 210 | 190 | 210 | 190 | 325 | 325 |
Rotation speed n, rpm | 2900 | 2900 | 2900 | 2900 | 1500 | 1500 |
Head rate 2 HNOM at the point QNOM, m | 40.18 | 29.71 | 44.56 | 31.43 | 31.32 | 32.77 |
Efficiency 3 ηNOM, % | 57.8 | 53.6 | 59.1 | 56.0 | 39.0 | 40.0 |
The Ratio of Q/QNOM, % | Value 1 of hnet(Q), m | Operating Time per Year in Hours Li%, % |
---|---|---|
120 | 38.8 | 10 |
100 | 30.0 | 60 |
70 | 19.8 | 10 |
50 | 15.0 | 10 |
20 | 10.8 | 10 |
Indicator | Pump ID | Notes | |||||
---|---|---|---|---|---|---|---|
Pump 1 | Pump 2 | Pump 3 | Pump 4 | Pump 5 | Pump 6 | ||
QBEP, m3/h | 110 | 91 | 80 | 68 | 80 | 125 | Note 1 |
ηBEP, % | 58.9 | 56.6 | 60.2 | 59.0 | 40.0 | 41.0 | Note 1 |
HBEP, m | 38.11 | 31.68 | 50.01 | 40.93 | 31.97 | 32.16 | Note 2 |
Phyd(QBEP), W | 11,403.60 | 7841.11 | 10,882.42 | 7571.30 | 6956.83 | 10,934.24 | Equation (9) |
Pref(QBEP), W | 19,360.96 | 13,853.55 | 18,077.11 | 12,832.72 | 17,392.09 | 26,668.88 | Equation (7) |
PL,avg, W | 6802.18 | Equation (3) | |||||
, W | 8160.00 | Note 3 | |||||
εBEP | 0.351 | 0.491 | 0.376 | 0.530 | 0.391 | 0.255 | Equation (2) |
0.421 | 0.589 | 0.451 | 0.636 | 0.469 | 0.306 | Note 3 | |
0.649 | 0.509 | 0.624 | 0.470 | 0.609 | 0.745 | Equation (1) | |
0.579 | 0.411 | 0.549 | 0.364 | 0.531 | 0.694 | Note 3 |
Indicator 1 | Pump ID | Notes | |||||
---|---|---|---|---|---|---|---|
Pump 1 | Pump 2 | Pump 3 | Pump 4 | Pump 5 | Pump 6 | ||
QEEI, m3/h | 132.31 | 111.24 | 113.94 | 97.10 | 100.00 | 180.00 | Equation (7) 2 |
HEEI, m | 32.93 | 27.07 | 40.00 | 32.41 | 31.32 | 30.03 | Equation (7) 2 |
ηEEI, % | 56.24 | 49.75 | 57.36 | 56.38 | 40.00 | 41.00 | Equation (9) |
Phyd(QEEI), W | 11,851.09 | 8190.84 | 12,398.43 | 8558.95 | 8519.69 | 14,702.86 | Equation (9) |
Pref(QEEI), W | 21,072.36 | 16,464.0 | 21,615.12 | 15,180.82 | 21,299.22 | 35,860.63 | Equation (7) 2 |
PL,avg, W | 6810.88 | Equation (3) | |||||
, W | 8160.00 | Table 4 | |||||
εEEI | 0.387 | 0.496 | 0.378 | 0.538 | 0.383 | 0.228 | Equation (2) |
0.323 | 0.414 | 0.315 | 0.449 | 0.320 | 0.190 | Note 1 | |
0.613 | 0.504 | 0.622 | 0.462 | 0.617 | 0.772 | Equation (1) | |
0.677 | 0.586 | 0.685 | 0.551 | 0.680 | 0.810 | Note 1 |
Indicator | Pump ID | |||||
---|---|---|---|---|---|---|
Pump 1 | Pump 2 | Pump 3 | Pump 4 | Pump 5 | Pump 6 | |
ηEEI | 3 | 4 | 1 | 2 | 6 | 5 |
ηBEP | 3 | 4 | 1 | 2 | 6 | 5 |
ηNOM | 2 | 4 | 1 | 3 | 5 | 6 |
3 | 2 | 5 | 1 | 4 | 6 | |
3 | 2 | 3 | 1 | 4 | 6 | |
5 | 2 | 4 | 1 | 3 | 6 | |
5 | 2 | 4 | 1 | 3 | 6 |
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Share and Cite
Ivchenko, O.; Andrusiak, V.; Kondus, V.; Pavlenko, I.; Petrenko, S.; Krupińska, A.; Włodarczak, S.; Matuszak, M.; Ochowiak, M. Energy Efficiency Indicator of Pumping Equipment Usage. Energies 2023, 16, 5820. https://doi.org/10.3390/en16155820
Ivchenko O, Andrusiak V, Kondus V, Pavlenko I, Petrenko S, Krupińska A, Włodarczak S, Matuszak M, Ochowiak M. Energy Efficiency Indicator of Pumping Equipment Usage. Energies. 2023; 16(15):5820. https://doi.org/10.3390/en16155820
Chicago/Turabian StyleIvchenko, Oleksandr, Vladyslav Andrusiak, Vladyslav Kondus, Ivan Pavlenko, Serhii Petrenko, Andżelika Krupińska, Sylwia Włodarczak, Magdalena Matuszak, and Marek Ochowiak. 2023. "Energy Efficiency Indicator of Pumping Equipment Usage" Energies 16, no. 15: 5820. https://doi.org/10.3390/en16155820